The Coarse Master Thread Repair Tool repairs, restores, and cleans damaged or worn internal threads with a coarse thread specification. It re-establishes proper thread geometry, allowing fasteners to engage securely and function as intended. The tool removes debris and thread deformation while re-cutting the original thread pattern to maintain correct fit and alignment. It supports maintenance and repair operations by extending the usability of threaded components without requiring full replacement.Attributes:• Helps prevent cross-threading during assembly.• Restores original thread profile for proper fastener engagement.• It is for a 1/2-inch diameter bolt with 13 threads per inch and a repair insert length of 3/4 inch (0.750 inch).• There are 12 inserts included in this specific package.Applications: The Coarse Master Thread Repair Tool is used in maintenance and repair operations to restore internal threads in components, ensuring proper fastener engagement and reliable assembly performance.